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winex11.drv: Always enable minimize/maximize functions for minimized windows. 

A window without a minimize or maximize box can still be programmatically
minimized by the Windows API. However, some WMs will refuse to change the
state and not allow it to be maximized again, despite it being minimized,
due to lacking those functions, thus not sending WM_STATE change notifications
when clicking the minimized window on the taskbar.

Heroes of Might and Magic V does this, for example, when losing focus. It
minimizes itself. When maximizing it by clicking on the taskbar it won't
send a WM_STATE change notification (since it was never changed) and fail
to maximize properly, showing a black screen (the game will still think it
is minimized).

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Gabriel Ivăncescu 2020-11-13 15:26:18 +02:00 committed by Alexandre Julliard
parent 79776e4540
commit 688fe7068c
1 changed files with 4 additions and 0 deletions
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4
dlls/winex11.drv/window.c
View File

@ -752,6 +752,10 @@ static void set_mwm_hints( struct x11drv_win_data *data, DWORD style, DWORD ex_s
if (style & WS_MINIMIZEBOX) mwm_hints.functions |= MWM_FUNC_MINIMIZE;
if (style & WS_MAXIMIZEBOX) mwm_hints.functions |= MWM_FUNC_MAXIMIZE;
if (style & WS_SYSMENU) mwm_hints.functions |= MWM_FUNC_CLOSE;
/* The window can be programmatically minimized even without
a minimize box button. Allow the WM to restore it. */
if (style & WS_MINIMIZE) mwm_hints.functions |= MWM_FUNC_MINIMIZE | MWM_FUNC_MAXIMIZE;
}
}